I have an external monitor attached to my MacBook Pro that I use as my only monitor (I leave the MBP closed). I'm also a heavy Spaces user. I want to start using the MBP's display as a secondary display, but I want to have Spaces treat it differently than it currently does. Instead of having Spaces switch both monitors, I want it to only switch my primary monitor, and leave my secondary monitor constant. This way I can have FireFox in Space 1 and iTunes on the second monitor, then switch to Word in Space 2 and still be able to control iTunes without going back to the first space. Is there any way I can do this? Thanks!